US Patent Issued to American Express Travel Related Services on Sept. 8 for "Systems and methods for validating transmissions over communication channels" (British Inventors)

ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,731,140, issued on Sept. 8, was assigned to American Express Travel Related Services Co. Inc. (New York).

"Systems and methods for validating transmissions over communication channels" was invented by Carlos Eduardo Oliveira do Valle Silvestre (East Sussex, Great Britain) and Jonathan Ward Lupton (West Sussex, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "An authentication system may receive an authentication MAC, an integrity MAC, and data transmitted from a payment application and a payment terminal. A local integrity MAC may be generated using the data as an input to a first cryptographic operation. The system may compare the local int...